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| 2016.8-2022.1 | Professor and Chair, Department of Industrial Engineering & Management, Yuan-Ze University, Taiwan, ROC |
| 2013-Present | Professor, Department of Industrial Engineering & Management, Yuan Ze University |
| 2006-2013 | Associate Professor, Department of Industrial Engineering & Management, Yuan Ze University |
| 2002-2006 | Assistant Professor, Department of Industrial Engineering & Management, Yuan Ze University |
| 1999-2001 | T.A. & R.A., Department of Industrial & Systems Engineering, Auburn University |
| 1997-1999 | T.A. & R.A., Department of Industrial Engineering, University of Pittsburgh |
| 1994-1995 | Teaching Assistant, Department of Mechanical Engineering, Tatung University |